@online {guowei2019ucasbeamer,
  author = {陈国威},
  title  = {中国科学院大学 Beamer (\LaTeX{}) --- 非官方的模版},
  month  = {11},
  year   = {2019},
  url    = {https://github.com/icgw/ucas-beamer},
  note   = {非官方的模版}
}

@online {ctexorg2020ctex,
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  title  = {\CTeX{} 宏集手册},
  month  = {6},
  year   = {2020},
  url    = {https://mirrors.tuna.tsinghua.edu.cn/CTAN/language/chinese/ctex/ctex.pdf},
}

@misc {tantau2004user,
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}

@article{graham1989concrete,
  title     = {Concrete mathematics: a foundation for computer science},
  author    = {Graham, Ronald L and Knuth, Donald E and Patashnik, Oren and Liu, Stanley},
  journal   = {Computers in Physics},
  volume    = {3},
  number    = {5},
  pages     = {106--107},
  year      = {1989},
  publisher = {American Institute of Physics},
  keywords  = {concrete}
}
